Concrete insert



July 17, 1923.

C. C. TOMKINSON CONCRETE INSERT Filed Jan. 27 '19'21 iriavi v nomto'c $4 Czar/e5 C 7522:191'060/2 $51 M em Patented July 17, 1923. i

UNITED STATES CHARLES o. ,TOM KINS ON, orrmunrrnrn} NEW JERSEY, Assre'non '10 3. EDWARD i i oennn, or. MOUNTAINVILLE, newsman.- 1 1 Application fi led. Januar 27', 1921. seriaino. 440,354.

To (ZZZ whom t mayyconcern: 1 1 a Be it known thatly CHARLES C. ToMKIN-' son, a citizen of the-UnitedStates and a resident of Plainfield5county :of Union, and 5 State of New Jersey, have invented certain new and useful Improvements in Concrete Inserts, of which the following-is a specification. Y i This invention relates to concrete inserts adapted to form supports" for anchoring means such as nuts or headedbolts and it is an object ofhtheinvention toii'orm theinserts of sheet metal in such manner that the anchors are effectuallysupported against claims for thescope of-theinve'ntion.

Referring nowtothedrawings; 7 "Fig. 1 is a perspectiveview of oneemb'odiment of my inventionytheihsert being arranged tor the removable and slidable secureinent of an an- 'chor in theform of aheaded bolt.

- Fig; 2 is.a1viewsimilarrtoFigpl'fof another embodiment'ot my invention showing the insert arranged for the fixed securement 7 of an'anchor nut,

Fig. 3 is a cross section taken on the plane of line -3 of F ignl showing the ledges for supporting t in' cross section.; I

showing the saidledges as of rolled form instead ofU-shaped. i i

Fig. "5'is' another view similar to Fig'. 3 but showing the said "ledges in then-form of angular flanges. i I Fig: 6 isan end elevation of twofof the inserts in nested7*positi0n for shipment. I Fig. '7is 'a bottom plan view of"a:modified form of tiny invention wherein..the "anchor supporting ledges are shown as; corrugated or crimpe'd throughout their length.

Fig. 8 is a cross section taken on the plane of line 8--8 of Fig. 7.

:ings forming part of this specification, reference being had, h0wever, to the appended -sert.- M w The; box 10 is shorter inlength thanthe he anchor as being U-shaped iew similar. 0 Fig. but- Like characters of reterenceldesignate corresponding parts in all. of the figures of the drawings.

Referring to indicatedgenerally by '10. This box is surmounted by a gableroof indicated generally bv 11. Risingfroln the ridge of thegroof is 13. In Fig. 1 the insert is shown as'madeup of 'two separate symmetrical sheet, metal Figsal and 2 willbe seen it I that the insert consists of an o'pen-sidedbox a web 12 having oppositely 'extending wings :rti

plates while in Fig. 2 the insert. is shownas 'made'or pressed from a. piece of: tubing.

lVhen the insert ismade from tubing-the 1 1 wings 13. are preferably; made by slitting the web and then bending thefladjacent sections in opposite directions ,as shown; when made from two symmetrically; formed plates the over in oppositedirections a -section of each plate. However, it will beapparent that the wings may be "formed in the same manner as those in Fig.2. -The two plates may be secured in fixed relation 'as'by spot welding i but, preferably, by an arrangement: consistwings are preferably {formed by bending :11.

desired a piecemay be cutout ofthe wings 15- and web at to reduce "thew'eight of theinlengthof the ridge of the roof 11.; the ,gables 11": therefore overhang the elitist-16 of. the

box]; This arrangement is an important :feature of the invention since "not onl is the material of-tthe plates .or tubefluse fto the p best possible "advantage and without; waste but by reason of the overhanging gables thus formed; the insertflis more firmly? 'held against withdrawal from the concrete strucs .Another important-feature "of the inveni tion'is the manner in whichthebottom edges of the box are utilized to formledges or rails for supporting the anchoring means '(bolt head or nut) .T 1 11 carrying out; this teature' of the invention, the corners of the box.

preferably bent over so, as to form one leg a of a U, the adjacent wall forming the other leg as clearly indicated in Figs, 1 and 3. While this Ueform isypr ferr rd, h i lt an is n t te o hat .l 'd i rl s for as shown in Figs. 4; and 5 at b and 0; respectively, the ledges may be rolled over until? closed by -c onta'ct' with' theadjacent chor 'and 'having---walls-for supporting an anchor, a roof surmounting the box, webs walls or may extend from the sidewalls at right angles. I I y In order to give additional stiffnessto the ledges 17 I ma as shown by d in Figs. 7 and 8 regardless of whether'they are in one -or other of-the formsshown inFigs. 3,4 or 5. 1p orderto further strengthen the ledgesr l'gmaypro vide suitablefillers e to be inserted between theadjaoent side walls and bent over ledges as shown in Figsutand :8.

" After' the ledges l7whave been formed." or

bentover -the sections' at theends of the box 10 are lbent over at right angles to form the V V lateral extensions or tabs 18. These tabslare notel'iedas at '19;to-provide;for-the passage of nails or other means for securing the i nsert to i a l fixed support as' a mold :while the concrete'is being poured.

LIn ig. 2 I have shown the box 110 f as housing a-n anchoringlmeans the form 0f a] 'nut' N in relatively fixed position. -The "edges of'thev-roof 11 form abutments Z on one side of the nut and the ledges 17 on the other 2 side prevent it trom dropping 3 out. When theinsertwis made from a pieeef'o'f tubing as in F-ig. 2 the nut will o-fcourse be inserted before the ledges 17 are formed. On the; other hand when the insert is :com-

v posed of two J pressed plates as iln"Fig..= l, the nut maybe inserted after the" ledges 17 are pressed but prior to 1 the securing: of the plates at their webs. 1:

As shown in Fig; hithe -insert m be of sufficient length to allow for the slidablea adjustment of the anchors. In order to provide-for the entry or removaljofa bolt 01 headed 1 anchor, the ledges 17 a e not 3 extended the full length oftheboxbutterrninateQshort of one :end thereofto provide .a

gatewayftGrq :lhe distance 7 between thisiend v and-the adjacent terminals of the ledgesis preferably less than the width 1 of the ibox assuming thatgthehead ofthe bolt or ian- Iehor isIsqu'are) inorder-to'lmake necessary the placingbf 1 the i bolt in an inclined position to permit its insertion or removalor in other words to preyent the anchor fromteing pulled out through i the gateway when the'an'chorwbolt is in normal" position." The materialr'leftsunbentwas a ledgeaat the gateway: isvturnejd back as flaps :20 against. the sidewalls of the-box; 1 i

While I have described the'invention in greatdetaih: it is to be distinctly understood thatvthe showing-sis merely; illustrative and is therefore v-n'o't to: be i taken in; a; limiting crimp r corrugateithemk, A I

' QIA' sheet niet'al 'concrete insert. comprissense,I intend no limitations other than whn ream 1 extending from the ridge of the roof'and flanges onthe webs.

ing a pair of 1 symmetrical stampingssecured together vand .forming 11a box adapted to :house. ananc'hor and havlngwallszxfor supporting an anchor, a roof surmounting the box," webs extending -fromuthe ridge of the roof anidrflanges-omthe webs; 4' v 'AV COIIICI'QtQ insert comprisingagboxya roof surmountlng the box and a substan tially .flat web extending from :the ;ridge of theiroof, theaheights oi' theabox; rootand' web beingLequ ali :4. A concrete insert'comprising a box, ,a

root-surmounting .the .bOX' and a. substan- I tially :flat web; extending from the ridge 1 .ol

theroof, the. heightso-f the box rooffand .web ib'ein'g equal, the 1 plane of the; web bi- 'sectin'g the roof and box.

." 5. Aesheet metal; concrete insert, comprising a pair of symmetrical.stampings; .each

stamping havingpa. side .wall and .end'.walls, i

a roof portion ibentiinwardly from ;.the side lwall v and having; end walls bent outwardly from the first mentioned: end 4 :walls, A a ;web extending in alinement with the; inneruedges ofi'the; end walls and a flange-on the web. y s

6. A heetmetal: concrete insert comprisi ing a pair (of; symmetrical 4 stampingsgeach stamping having azsid'e wall and iend wails,

tofthel end walls and a: laterally extending flange .on'r'the web, Leach side wall; having) a portion of its lower edge bentpinwardly to form a ledge. .i

7. Assheet; metal concrete insert l comprisin a pair ref 5 symmetrical lstampings each laterally extending 1 .a L roof portion. bent. inwardly :frfomn the side a:

stamping having a side 'walland.end;w al;ls, :x

a roof portion bent inwardly from; the side wall andohaving end walls bent outwardly from the first mentionediendriwallg, anweb flange on the web, the websflozt the two stampings having interengaging portions extending inlali'nement withthelinnen-edges of ithe'iendywalls and a laterally extending hand: this l'x'thidayl ,ofJanuary, 1921.. I 3 i .1

' a eHARnEs; teamma e. 

